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EP0652992B1 - Presse de machine a fabriquer du papier pour papiers fins - Google Patents

Presse de machine a fabriquer du papier pour papiers fins Download PDF

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Publication number
EP0652992B1
EP0652992B1 EP94917672A EP94917672A EP0652992B1 EP 0652992 B1 EP0652992 B1 EP 0652992B1 EP 94917672 A EP94917672 A EP 94917672A EP 94917672 A EP94917672 A EP 94917672A EP 0652992 B1 EP0652992 B1 EP 0652992B1
Authority
EP
European Patent Office
Prior art keywords
press
roller
gap
assembly according
felted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94917672A
Other languages
German (de)
English (en)
Other versions
EP0652992B2 (fr
EP0652992A1 (fr
Inventor
Karl Steiner
Albrecht Meinecke
Rui Goncalves
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JM Voith GmbH
Original Assignee
JM Voith GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25926346&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0652992(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE4318036A external-priority patent/DE4318036C1/de
Priority claimed from DE19934321402 external-priority patent/DE4321402A1/de
Application filed by JM Voith GmbH filed Critical JM Voith GmbH
Publication of EP0652992A1 publication Critical patent/EP0652992A1/fr
Publication of EP0652992B1 publication Critical patent/EP0652992B1/fr
Application granted granted Critical
Publication of EP0652992B2 publication Critical patent/EP0652992B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof
    • D21F3/045—Arrangements thereof including at least one extended press nip
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0281—Wet presses in combination with a dryer roll
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof

Definitions

  • the invention relates to a press section of a paper machine for thin papers according to the preamble of claim 1, in particular for single-sided papers or tissue, in particular the web take-off on the last press unit.
  • Press units in paper machines in which the water is discharged on one side are well known. For example, reference is made to the document "Wochenblatt für Textilfabrikation 5 (1988)", page 173 ff. There, after the press nip, the web is removed from the smooth roll in free train, e.g. a smoothing press, a drying cylinder or an in-line dryer section.
  • German patent application DE 42 24 730 C1 which does not belong to the prior art after the priority date of the present application, in which a decrease in the paper web from a roller through a press hose of an extended nip press 13.3 is shown in FIG.
  • the disadvantage here is that the service life of the press hose is greatly reduced by contact with the hot surface of the following cylinder 20.
  • a press nip which is formed from a circumferential, smooth surface in contact with paper and a felted press roller, the smooth surface transfers the paper web behind the press nip to a heatable roller, avoiding a free paper draw, the smooth surface being the outer surface of a tube roller is formed with a rigid roll shell.
  • the felted press roll is an extended nip or shoe press roll.
  • the smooth tube roll in front of the press nip forms a further, preceding press nip (pre-press nip) with another felted press roll.
  • pre-press nip preceding press nip
  • a separate, endless felt is provided for each press nip; however, a single felt can also be used for both press nips may be advantageous due to operational circumstances.
  • the further felted press roll is also a shoe or extended-nip press roll.
  • the further felted press roll is a suction roll, the suction zone of which is predominantly in front of the pre-press nip.
  • the smooth tube roller may also be advantageous to design the smooth tube roller as a deflection adjusting roller in order to maintain uniform line pressures and thus improve web transfer.
  • a further advantageous embodiment of the press section results when the heatable roller is a non-felted tube roller guiding the web, which delivers the web to a drying cylinder, preferably avoiding the free paper draw. It can also be advantageous here if the heatable roll forms an after-press nip with an additional, felted press roll.
  • the gap between the smooth tube roller and the heatable roller in particular a drying cylinder, can be opened in order to facilitate starting without paper.
  • Figures 1 to 7 show variants of a web transfer between the press unit and the subsequent paper machine with smooth rollers.
  • FIG. 1 shows the last press unit of a paper machine with a smooth central roller 1 (a tube roller - that is to say with a dimensionally stable outer jacket) which, with another roller 2, forms a penultimate press nip together with a single felt running through it.
  • the roller 2 can be a suction roller or a blind-drilled roller.
  • the paper web then remains on the smooth roller 1 and is guided to a last press nip which is formed by the roller 1 and an extended nip press 3. Thereafter, the paper web remains on the smooth roller 1 and is transferred to a large smoothing cylinder 4, which can also be designed as a tissue cylinder, according to the invention.
  • Figure 2 shows a similar arrangement as Figure 1, but the last press nip between the central roll 1, which is also designed as a tube roll, and the counter roll 3 is not designed as a long nip press but as a so-called smoothing press.
  • the paper web also remains on the smooth central roller 1 after the last press nip and is then transferred to a cylinder 4, which is heated, for example.
  • a cylinder 4 which is heated, for example.
  • FIG. 3 shows a special embodiment of the transfer according to the invention.
  • the beginning of a paper machine is shown here, in which stock suspension is injected between a screen 6 and a felt 10, which abut a blow roller 20, via a headbox 11.
  • the paper web is transported lying on this felt up to the press nip, which is formed here by an extended nip press 3 and the smooth tube roll 1 according to the invention. Possible devices between the press nip and the headbox are not shown here.
  • the paper web is transferred directly to a subsequent cylinder 5 via the smooth roller 1.
  • the roller 1 can preferably be designed as a deflection adjusting roller, in order to achieve the to ensure even pressure, especially on the following cylinder 5.
  • Figure 4 shows a situation at the last press nip of a press section.
  • a press unit between two cylinders 1 and 3 is shown here, the cylinder 1 representing the smooth cylinder according to the invention with a dimensionally stable surface.
  • the two cylinders 1 and 3 are provided here according to the invention on a movable lever arm 40, so that they can be moved in and out in their entirety by the subsequent large cylinder 30 without the press nip between the two cylinders 1 and 3 changing.
  • FIG. 5 shows a further variant of the invention.
  • a felt 10 carrying a paper web 100 is shown.
  • the felt 10 guides the paper web from above over a cylinder 300, which forms a penultimate press nip with the subsequent smooth tube roll 1 according to the invention.
  • the felt runs via a conditioning device 8 and a deflection roll 400 separately from the paper web back to the last press nip via the roll 600 and becomes returned from there, while the paper web remains on the smooth roller 1 and is transferred directly to the subsequent drying cylinder 7.
  • Figure 6 shows a press unit according to the invention of a compact design. It is introduced here via a headbox 11 stock suspension between a felt and a smooth tube roll 1. An elongated nip press 3 rests on the smooth tube roll 1 and then in turn on the smooth roll a next smooth roll 1 ', which transfers the paper web to the subsequent station of the paper machine.
  • FIG. 7 shows the arrangement according to the invention using the example of a paper machine for producing crepe paper.
  • a belt 500 coming from the right can be seen on which the paper web is guided.
  • the tape is passed together with the paper web over a suction roller 200, which transfers the paper web to a profile roller 1 with a rigid jacket.
  • the belt 500 is being fed back again via a deflection roller, the paper web remains on the profile roller 1 and is fed to a press nip, formed by the profile roller 1 and an extended nip press 3, from where it continues to remain on the surface of the profile roller and then is transferred to a crepe cylinder 4, which rests on the profile roller 1.

Landscapes

  • Paper (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Color Printing (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Press Drives And Press Lines (AREA)

Claims (11)

  1. Partie de pressage d'une machine à papier produisant des papiers fins, cette partie comportant une fente de pressage délimitée par une surface périphérique lisse, en contact avec le papier et par un cylindre de pressage (3, 600) garni de feutre,
    caractérisée en ce que
    la surface lisse, sans qu'une traction libre s'exerce sur le papier, transmet la bande de papier (100), en aval de la fente de pressage, à un cylindre (4, 5, 7, 30, 1') qui peut être chauffé, cette surface lisse étant celle de l'enveloppe (1), de forme rigide dans sa forme, d'un cylindre tubulaire.
  2. Partie de pressage selon la revendication 1,
    caractérisée en ce que
    le cylindre de pressage (3) garni de feutre est un cylindre à fente longitudinale ou à sabot.
  3. Partie de pressage selon la revendication 1 ou 2,
    caractérisée en ce que
    le cylindre tubulaire (1), avec un second cylindre de pressage (2, 200, 300) garni de feutre, délimite, en amont de la fente de pressage de la revendication 1, une seconde fente de pressage antérieure.
  4. Partie de pressage selon la revendication 3,
    caractérisée en ce que
    les deux fentes de pressage sont équipées chacune d'un feutre distinct, sans fin.
  5. Partie de pressage selon la revendication 3 ou 4,
    caractérisée en ce que
    le second cylindre de pressage est un cylindre à sabot ou à fente longitudinale.
  6. Partie de pressage selon la revendication 3,
    caractérisée en ce qu'
    un seul feutre commun (10) est prévu pour les deux fentes de pressage.
  7. Partie de pressage selon une des revendications 3, 4 ou 6,
    caractérisée en ce que
    le second cylindre de pressage (200), garni de feutre, est un cylindre d'aspiration dont la zone active se trouve principalement en amont de la fente antérieure de pressage.
  8. Partie de pressage selon une des revendications 1 à 7,
    caractérisée en ce que
    le cylindre tubulaire lisse (1) est un cylindre de réglage de cintrage.
  9. Partie de pressage selon une des revendications 1 à 8,
    caractérisée en ce que
    le cylindre (4) qui peut être chauffé est un cylindre tubulaire, non garni de feutre, entraînant la bande pour le délivrer à un cylindre de séchage, de préférence en évitant une traction libre du papier.
  10. Partie de pressage selon la revendication 8,
    caractérisée en ce que
    le cylindre chauffable (4) délimite, avec un cylindre supplémentaire garni de feutre, une fente de pressage postérieure.
  11. Partie de pressage selon une des revendications 1 à 10,
    caractérisée en ce que
    la fente entre le cylindre tubulaire lisse (1) et le cylindre chauffable (30), en particulier un cylindre de chauffage, peut être ouverte.
EP94917672A 1993-05-29 1994-05-27 Presse de machine a fabriquer du papier pour papiers fins Expired - Lifetime EP0652992B2 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4318036A DE4318036C1 (de) 1993-05-29 1993-05-29 Presseneinheit einer Papiermaschine zur Herstellung von Tissuepapier
DE4318036 1993-05-29
DE19934321402 DE4321402A1 (de) 1993-06-26 1993-06-26 Presse einer Papiermaschine für dünne Papiere
DE4321402 1993-06-26
PCT/EP1994/001730 WO1994028240A1 (fr) 1993-05-29 1994-05-27 Presse de machine a fabriquer du papier pour papiers fins

Publications (3)

Publication Number Publication Date
EP0652992A1 EP0652992A1 (fr) 1995-05-17
EP0652992B1 true EP0652992B1 (fr) 1997-07-30
EP0652992B2 EP0652992B2 (fr) 2000-11-02

Family

ID=25926346

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94917672A Expired - Lifetime EP0652992B2 (fr) 1993-05-29 1994-05-27 Presse de machine a fabriquer du papier pour papiers fins

Country Status (10)

Country Link
US (1) US5670023A (fr)
EP (1) EP0652992B2 (fr)
JP (1) JPH08502104A (fr)
AT (1) ATE156208T1 (fr)
BR (1) BR9405408A (fr)
CA (1) CA2141292A1 (fr)
DE (1) DE59403546D1 (fr)
ES (1) ES2105720T3 (fr)
FI (1) FI950376A (fr)
WO (1) WO1994028240A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE511485C2 (sv) * 1998-02-04 1999-10-04 Valmet Karlstad Ab Pappersmaskin och förfarande för framställning av en papppersbana
US6547924B2 (en) 1998-03-20 2003-04-15 Metso Paper Karlstad Ab Paper machine for and method of manufacturing textured soft paper
US6159343A (en) * 1998-07-08 2000-12-12 Beloit Technologies, Inc. Press-to-dryer apparatus
US6248210B1 (en) 1998-11-13 2001-06-19 Fort James Corporation Method for maximizing water removal in a press nip
US6231723B1 (en) * 1999-06-02 2001-05-15 Beloit Technologies, Inc Papermaking machine for forming tissue employing an air press
SE514973C2 (sv) * 1999-09-07 2001-05-21 Valmet Karlstad Ab Metod och pappersmaskin för framställning av en liner
PL2072671T3 (pl) * 2007-12-20 2012-07-31 Stora Enso Oyj Układ sekcji prasowej maszyny tworzącej wstęgę oraz tektura i papier wytworzone w takim układzie
AT509992B1 (de) * 2010-10-27 2012-01-15 Andritz Ag Maschf Vorrichtung und verfahren zur trocknung von faserstoff
ES2635323T3 (es) 2011-12-07 2017-10-03 Valmet Aktiebolag Rodillo prensador con zona de contacto extendida para máquina de fabricación de papel y procedimiento para la fabricación de papel tisú
EP2839074B1 (fr) 2012-04-19 2016-03-09 Valmet Aktiebolag Rouleau pour presse à pince allongée, presse à pince allongée, machine à papier et procédé de fonctionnement de la presse à pince allongée

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1381360A (en) * 1972-12-12 1975-01-22 Valmet Oy Paper machine multi-roll press assemblies

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE295540C (fr) *
DE273783C (fr) †
US2209757A (en) * 1936-05-20 1940-07-30 Beloit Iron Works Felt arrangement for horizontal press roll assemblies
DE750222C (de) * 1940-08-09 1944-12-20 J M Voith Fa Saugpresse fuer Papiermaschinen mit Glaettzylinder
US3627630A (en) † 1969-12-04 1971-12-14 Beloit Corp Method of flash drying pulp
SE374150B (fr) * 1970-03-17 1975-02-24 Ahlstroem Oy
FI79731C (fi) † 1980-12-18 1990-02-12 Beloit Corp Presspartiet av en pappersmaskin.
US4483745A (en) * 1982-09-29 1984-11-20 Beloit Corporation Method and apparatus of sheet transfer using a nonporous smooth surfaced belt
FI64823C (fi) † 1982-11-02 1984-01-10 Valmet Oy Oeverfoeringsanordning foer ledande av pappersbanan fraon presspartiet i en pappersmaskin till dess torkparti
US4729921A (en) † 1984-10-19 1988-03-08 E. I. Du Pont De Nemours And Company High density para-aramid papers
EP0289477A3 (fr) * 1987-04-28 1989-03-08 Valmet Paper Machinery Inc. Procédé pour le pressage à chaud d'une bande de papier et dispositif de séchage pour l'application du procédé
US4880502A (en) * 1987-08-11 1989-11-14 Beloit Corporation Press drying apparatus with deflection control and blow box cooling
FI83895C (fi) † 1988-04-13 1991-09-10 Valmet Paper Machinery Inc Foerfarande och anordning vid pressbehandling av en pappersbana.
US4874470A (en) * 1988-10-04 1989-10-17 Beloit Corporation Papermaking press section and transfer arrangement to dryer section
FI93663C (fi) * 1990-06-06 1995-05-10 Valmet Paper Machinery Inc Menetelmä ja laite erillispuristimella varustetussa paperikoneen puristinosassa
DE4042480C2 (de) * 1990-08-17 2000-02-10 Voith Gmbh J M Pressenpartie einer Papiermaschine
DE4112355A1 (de) * 1991-04-16 1992-10-22 Escher Wyss Gmbh Pressenpartie einer papiermaschine
DE9206340U1 (de) * 1991-08-10 1992-08-13 Sulzer-Escher Wyss GmbH, 7980 Ravensburg Pressenpartie einer Papiermaschine
DE4140879A1 (de) * 1991-12-11 1993-06-17 Voith Gmbh J M Pressenpartie
ATE151132T1 (de) * 1993-01-23 1997-04-15 Voith Gmbh J M Nasspresse für eine papiermaschine
DE4321402A1 (de) * 1993-06-26 1993-12-02 Voith Gmbh J M Presse einer Papiermaschine für dünne Papiere
DE4318036C1 (de) * 1993-05-29 1994-07-28 Voith Gmbh J M Presseneinheit einer Papiermaschine zur Herstellung von Tissuepapier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1381360A (en) * 1972-12-12 1975-01-22 Valmet Oy Paper machine multi-roll press assemblies

Also Published As

Publication number Publication date
JPH08502104A (ja) 1996-03-05
ATE156208T1 (de) 1997-08-15
WO1994028240A1 (fr) 1994-12-08
EP0652992B2 (fr) 2000-11-02
BR9405408A (pt) 1999-09-08
CA2141292A1 (fr) 1994-12-08
ES2105720T3 (es) 1997-10-16
FI950376A0 (fi) 1995-01-27
DE59403546D1 (de) 1997-09-04
US5670023A (en) 1997-09-23
FI950376A (fi) 1995-01-27
EP0652992A1 (fr) 1995-05-17

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